Question 1

Determine the decay rate for a radioisotope sample with an activity of 12 microcuries? [1 curie = 3.7 × 10¹⁰disintegrations/s]

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Question 2

What type of nuclear process is illustrated below?

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Question 3

What type of nuclear process is illustrated below?

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Question 4

Complete and balance the nuclear equation

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Question 5

What type of nuclear process is illustrated below?

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Question 6

Tritium is a radioisotope of hydrogen having a half-life of 12.3 years.If you initially had 1.0 × 10^-7 mole of tritium, calculate the decay rate of the sample.

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Question 7

Complete and balance the nuclear equation

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Question 8

Complete and balance the nuclear equation

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Question 9

In the following reaction, identify X.

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...

Question 10

On a neutron number versus proton number plot, the nucleus of oxygen-15 lies below the belt of stability.Write an equation for the radioactive decay of oxygen-15.

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Question 11

Decay of tin-110 by electron capture yields

Accepted Answer

Electron capture by a nucleus results in the conversion of a proton into a neutron, thereby decreasing the atomic number by one while keeping the mass number the same. Tin (Sn) has an atomic number of 50, so the decay of tin-110 by electron capture would produce an element with an atomic number of 49, which is indium (In), making the correct answer indium-110 (C).

Question 12

Tritium is a radioisotope of hydrogen having a half-life of 12.3 years.If you initially had 1.0 × 10^-7 mole of tritium, how many moles of tritium would be left after 78 years?

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Question 13

Decay of lutetium-167 by electron capture yields

Accepted Answer

When lutetium-167 undergoes electron capture, one of its inner-shell electrons combines with a proton in the nucleus to form a neutron. This process results in the atomic number decreasing by one and the mass number remaining the same. The resulting element is ytterbium-167.

Question 14

Decay of ruthenium-93 by positron emission yields

Accepted Answer

When a nucleus emits a positron, its atomic number decreases by one but its mass number remains unchanged, leading to the formation of technetium-93 from ruthenium-93.

Question 15

In the following reaction, identify X.

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...

Question 16

Complete and balance the nuclear equation

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Question 17

Complete and balance the nuclear equation

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Question 18

On a plot of the number of neutrons versus the number of protons, a nucleus of aluminum-28 lies above the belt of stability.Write an equation for the radioactive decay of aluminum-28.

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Question 19

Balance the equation

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Question 20

Decay of silicon-27 by positron emission yields

Accepted Answer

Positron emission from a nucleus results in the conversion of a proton into a neutron, decreasing the atomic number by one but leaving the mass number unchanged. Therefore, silicon-27 (Si-27) decaying by positron emission would become aluminum-27 (Al-27), as aluminum has an atomic number one less than silicon.

Quiz 19: Nuclear Chemistry

Determine the decay rate for a radioisotope sample with an activity of 12 microcuries? [1 curie = 3.7 × 10¹⁰disintegrations/s]

What type of nuclear process is illustrated below?

What type of nuclear process is illustrated below?

Complete and balance the nuclear equation

What type of nuclear process is illustrated below?

Tritium is a radioisotope of hydrogen having a half-life of 12.3 years.If you initially had 1.0 × 10^-7 mole of tritium, calculate the decay rate of the sample.

Complete and balance the nuclear equation

Complete and balance the nuclear equation

In the following reaction, identify X. $In the following reaction, identify X. A) ( \alpha ) B) n C) p D) ( ) E) ( \beta )$

On a neutron number versus proton number plot, the nucleus of oxygen-15 lies below the belt of stability.Write an equation for the radioactive decay of oxygen-15.

Decay of tin-110 by electron capture yields

Tritium is a radioisotope of hydrogen having a half-life of 12.3 years.If you initially had 1.0 × 10^-7 mole of tritium, how many moles of tritium would be left after 78 years?

Decay of lutetium-167 by electron capture yields

Decay of ruthenium-93 by positron emission yields

In the following reaction, identify X. $In the following reaction, identify X. A) 7 \beta B) 3 \alpha C) 4n D) E) 15p$

Complete and balance the nuclear equation

Complete and balance the nuclear equation

On a plot of the number of neutrons versus the number of protons, a nucleus of aluminum-28 lies above the belt of stability.Write an equation for the radioactive decay of aluminum-28.

Balance the equation

Decay of silicon-27 by positron emission yields

Quiz 19: Nuclear Chemistry

Determine the decay rate for a radioisotope sample with an activity of 12 microcuries? [1 curie = 3.7 × 1010 disintegrations/s]

What type of nuclear process is illustrated below?

What type of nuclear process is illustrated below?

Complete and balance the nuclear equation

What type of nuclear process is illustrated below?

Tritium is a radioisotope of hydrogen having a half-life of 12.3 years.If you initially had 1.0 × 10-7 mole of tritium, calculate the decay rate of the sample.

Complete and balance the nuclear equation

Complete and balance the nuclear equation

In the following reaction, identify X.

On a neutron number versus proton number plot, the nucleus of oxygen-15 lies below the belt of stability.Write an equation for the radioactive decay of oxygen-15.

Decay of tin-110 by electron capture yields

Tritium is a radioisotope of hydrogen having a half-life of 12.3 years.If you initially had 1.0 × 10-7 mole of tritium, how many moles of tritium would be left after 78 years?

Decay of lutetium-167 by electron capture yields

Decay of ruthenium-93 by positron emission yields

In the following reaction, identify X.

Complete and balance the nuclear equation

Complete and balance the nuclear equation

On a plot of the number of neutrons versus the number of protons, a nucleus of aluminum-28 lies above the belt of stability.Write an equation for the radioactive decay of aluminum-28.

Balance the equation

Decay of silicon-27 by positron emission yields

Determine the decay rate for a radioisotope sample with an activity of 12 microcuries? [1 curie = 3.7 × 10¹⁰disintegrations/s]

Tritium is a radioisotope of hydrogen having a half-life of 12.3 years.If you initially had 1.0 × 10^-7 mole of tritium, calculate the decay rate of the sample.

In the following reaction, identify X. $In the following reaction, identify X. A) ( \alpha ) B) n C) p D) ( ) E) ( \beta )$

Tritium is a radioisotope of hydrogen having a half-life of 12.3 years.If you initially had 1.0 × 10^-7 mole of tritium, how many moles of tritium would be left after 78 years?

In the following reaction, identify X. $In the following reaction, identify X. A) 7 \beta B) 3 \alpha C) 4n D) E) 15p$